If you didn't pick up one of the RAM kits that comes with an active cooler and are looking to not only monitor the temperature of your DIMMs but also get a light show going inside your case then Corsair has a treat for you. The $54 Corsair AirFlow Pro can do both and you can see it for yourself at Techgage.

"Have a desire to add a bit of 'bling' to your PC, but fear being ridiculed for it? Well, there's no better excuse for bling than with Corsair's AirFlow Pro add-on for the company's AirFlow 2 memory cooler. In addition to offering a hypnotizing light-show, the AirFlow Pro can also keep you informed on your memory's usage and temperatures."